body{
	margin: 0;
	padding: 0;
}
.box1{
	width: 1200px;
	height: 65px;
	display: flex;
	margin:0 auto;
	justify-content: space-between;
}
.box11{
	width: 100px;
	height: 50px;
	font-size: 24px;
	margin-top: 20px;
	margin-bottom: 15px;
}
.box12{
	width: 170px;
	height: 40px;
	font-size: 12px;
	margin-top:35px;
}
.tp{
	width: 1200px;
	height: 380px;
	margin: 0 auto;
}
.box2{
	width: 1200px;
	height: 510px;
	margin: 0 auto;
	display: flex;
	flex-wrap: wrap;
}
.box21{
	width: 400px;
	height: 250px;
	border-bottom: 1px solid grey;
}
.bt{
	font-size: 20px;
	margin-top: 40px;
}
span{
	font-size: 16px;
}
.bt:hover{
	color: red;
}
.js{
	font-size: 12px;
	color: gray;
	margin-top: 15px;
	margin-right: 50px;
}
